#ifndef STACK_H
#define STACK_H

#include "Object.h"

namespace Kylin {
template <typename T>
class Stack : public Object {
public:
    virtual void push(const T &value) = 0;
    virtual T pop() = 0;
    virtual T &top() = 0;
    const T &top() const { return const_cast<Stack *>(this)->top(); }
    virtual void clear() = 0;
    virtual size_t size() const = 0;
};
} // namespace Kylin
#endif // STACK_H